Daniel Maestas, MD
NPI 1407823511 · Family Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Maestas, MD is a Family Medicine Physician provider in Saint Louis, MO (NPI 1407823511).
Provider details
- NPI number
- 1407823511
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R2J10 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
488 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 256 | $123 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 90 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 43 | $125 |
| Administration of Influenza Virus VaccineG0008 | 36 | $31 |
| Hemoglobin A1c Level83036 | 33 | $10 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 30 | $161 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 84 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 136 | 68 |
| Atorvastatin Calcium | 107 | 52 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 100 | 20 |
| Losartan Potassium | 83 | 36 |
| Levothyroxine Sodium | 81 | 31 |
| Metformin Hcl | 64 | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,404 across 73 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 9338 Olive BlvdSuite 100Olivette, MO 63132-3248Phone: (314) 993-2400
Registry dates
- Enumerated
- 2006-03-07
- Last updated
- 2025-09-22
- Certified
- 2025-09-22
Frequently asked questions
- What is Daniel Maestas's NPI number?
- Daniel Maestas's National Provider Identifier (NPI) is 1407823511, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Maestas's specialty?
- Daniel Maestas is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Maestas located?
- Daniel Maestas's practice location on file with NPPES is 8888 Ladue Rd Ste 210, Saint Louis, MO 63124-2056.
- What is Daniel Maestas's phone number?
- The practice phone number listed in the NPPES registry for Daniel Maestas is (314) 862-5044.
- Does Daniel Maestas accept Medicare?
- Daniel Maestas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Maestas's NPI active?
- Yes — Daniel Maestas's NPI (1407823511) is active in the NPPES registry as of the last update on 2025-09-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.